Webbrowser 에서 Proxy 설정하기

using System.Runtime.InteropServices; // dll import할때 필요

public struct Struct_INTERNET_PROXY_INFO

{

    public int dwAccessType;

    public IntPtr proxy; // IP and port

    public IntPtr proxyBypass;

};

[DllImport("wininet.dll", SetLastError = true)]

private static extern bool InternetSetOption(IntPtr hInternet, int dwOption, IntPtr lpBuffer, int lpdwBufferLength);

private void RefreshIESettings(string strProxy)

{

const int INTERNET_OPTION_PROXY = 38;

const int INTERNET_OPEN_TYPE_PROXY = 3;

Struct_INTERNET_PROXY_INFO struct_IPI;

struct_IPI.dwAccessType = INTERNET_OPEN_TYPE_PROXY;

struct_IPI.proxy = Marshal.StringToHGlobalAnsi(strProxy);

struct_IPI.proxyBypass = Marshal.StringToHGlobalAnsi("local");

IntPtr intptrStruct = Marshal.AllocCoTaskMem(Marshal.SizeOf(struct_IPI));

Marshal.StructureToPtr(struct_IPI, intptrStruct, true);

bool iReturn = InternetSetOption(IntPtr.Zero, INTERNET_OPTION_PROXY, intptrStruct, Marshal.SizeOf(struct_IPI));

}

RefreshIESettings ("프록시ip:port");

webBrowser1.Navigate ("http://naver.com");